Charles edward pointon and john edward pointon



(No Model.)

C. E. 8v J. E. POINTON. MAGHINE POR MOLDING DOUGH 0R LIKE MATERIALS.

y l l l a l UNITED STATES CHARLES EDVAR-D POINTON PATENT @Erica AND JOHNEDVARD POINTON, 0F VELLING- TON, ENGLAND.

MACHINE FOR IVIOLDING DOUGH OR LIKE MATERIAL.

SPECIFICATION forming part of Letters Patent No. 597,088, dated January11, 1898.

Application filed February 25, 1897. Serial No. 625,022. (No model.)

To all wwm, it may/,1 concern: Y

Be it known that we, CHARLES EDWARD POINTON and JOHN EDWARD POINTON,residing at Wrekin Road VVellingtomin the county of Salop, England,subjects of the Queen of Great Britain, have invented certain new anduseful Improvements in Machines for Molding Dough or Like Material, ofwhich the following is a specification.

This invention consists of improvements relating to machinery formolding dough'or like material, our object being to provide simple meanswhereby the molding shall be more efficiently performed than with themachines or appliances at present in use.

7e will describe our invention byreference to the accompanying sheet ofdrawings, to be hereinafter referred to.

Figure l is a side elevation, with part in section, of a dough-moldin gmachine constructed in accordance with our invention. Fig. 2 is asectional end elevation of the machine. Fig. 3 is a section to a largerscale through one of the annular molding-chambers.

The same reference-letters in the different views indicate the sameparts.

XVe emplo7 a pair of wheels, such as A A', which We mount upon a shaftB, with an intermediate or central collar C between them, such collarbeing either formed with or attached to the shaft. The wheels A A aresecured to the shaft B by means of feather-keys or in such other mannerthat While they are compelled to rotate with the shaft, yet, whennecessary for cleaning purposes, they may be caused to slide along theshaft away from each other and be pushed back into position again aftercleaning. The perimeters of the Wheels are incloscd by the casing D, andthe shaft B is supported by the bearings mounted on the standards E E. av

During the working of the machine lateral movement of the wheels isprevented by the central collar C and by the studs F F', which arescrewed into the boss of the wheel A", as illustrated at Fig. 2, andcotter pins or pegs passing through the projecting outer ends of thestuds. In this manner the two Wheels are tied together and retained intheir Working position against the central collar C. To slide the'wheels out from the casing D, we

' withdraw the cotter pins or pegs from the studs, thus disconnectingthe wheels and permitting of their outward movement in oppositedirections, sufficient space G being pro-. vided between the outer sideof each wheel and the inner sides of the standards E E to enable eachwheel to be drawn out clear of the casing D for the thorough cleaning ofthe workin g surfaces of the machine. The Wheels are readily connectedtogether again by simply pushing' them back against the central collarand afterward inserting the cotter pins or pegs through the projectingouter end of the studs. le provide holes or slots, such as a a', in eachWheel for the insertion of suitable draw-bars, by which the wheels canbe readily drawn or pushed along the shaft.

The shaft B and the Wheels A A" mounted thereon are caused to revolvetogether in the same direction by hand or mechanical power applied ortransmitted to the shaft in any suitable and well-known manner.

The dough to be molded is admitted to the annular molding-chambers Il Iland dis-V charged therefrom by way of the doublemouthed aperturedattachment J, the admissionnpertures being at the lower side .l and thedischarge-apertures at the upper side J2.

We find that the proper and efficient Working of the dough depends chieyupon the correct proportions and arrangement of the frictional orworking surfaces formed by the rims of the revolving wheels A A and theinterior of the fixed casing D, which together form the annularmolding-chambers.

It will be understood that the two chambers H and l-l' have noconnection or com municatiou with each other, each being independent ofthe other, although the two rotating working surfaces formed by thewheels of course move together.

We find after long and costly experiments that the correct form of themoldingchambers is as shown at the sectional view Fig. 3. The surfaceAfz of the Wheel is struck from a radius K, which is rather greater thanthe depth L of the chamber. The stationary working surface of the innerprojecting rib D of the xed casing D is struck from a radius K' equal tothe radius K. rlhe bottom of the chamber is of aform corresponding toIOO the are of a circle Whose center is at M,..or the pointwvllerea linejoiningftheinner-extremities of the rim-cuts the center lineN O. Theinner corner or angle Pis Well rounded, as shown, to prevent lodgrnentof particles of the dough that occurs Without such rounding. The Workingsurface of the `Wheel* is exi tended beyond the center line O N foradistance Q, which varies with the nature of thez dough and the amount ofWorking required. Without such extension the ldough `would have a simplerotary motion imparted to it While being carried around the annularmolding-chamber, butv by the. provision. off the. exa tension anadditional turn orixvistris ini-L parted to the dough, and it is thussubjected` to an additional kneading or like action.

Havingl now described our invention,v what We claim asl new, and desireto secureL byLettersIPatent, `is-- -l. In machinery for moldingdoughland like material-r the combination of the Wheels A A mountedupon-.and rotating Withftlie shaftB, Withiafiixed casingD havinginternal projecting ribs 1D which in conjunction with the rims of thesaid Wheels A iN-form the an- .anextension:QabeyondA the center O N, ofa i easingD, havingan internally-projecting rib D' which together withthe rim of the said Wheel A forms an annular molding-chamber,substantially as setforth.

',In witness whereof Wefhavezhereunto .set our hands inv presence, of.twomitnessea f CHARLES 'EDVARDEPOINTON.

JOI-IN EDWARD :PQINTON WitnesSes:

EDWARD MARKS, HERBERT .BoWKErr

